Credit check done without me consent

Last week on 2021/12/10 I received a call from an agent who wanted to increase my credit amount. I specifically asked her if a credit check was going to be done on my profile. She said yes and I gave her a reason why I didn't want any credit checks done on my profile As I wanted not to a decrease on my credit score.

She assured me that it won't be done. I then asked her to confirm if our conversation was recorded and she again confirmed that it was done. She went ahead and did whatever she did from her side and she said she can't increase it cos of affordability. I asked her what she meant by that and she couldn't give me proper answer. I then asked her if she can get someone to give me a proper answer. I was then put on hold and call dropped.

The next day on the tenth I received an SMS that informed me that a credit check was done on my profile by a clothing company. I then called the call center of Truworths. Spoke toMangezipho who then requested her Supervisor named Zane to assist me. Told Zane about me problem and he said it not like my name was not already dented. The was a time I did not pay so my name was already dented giving me an impression that his other colleague did nothing wrong. My name may have been already dented but I am trying to get back on my feet and cleaning it. I feel disrespected by the caller who called me wanting to increase my credit limit and Zane for saying what he said. He said he will listen to that call and come back to me. I am still waiting. What about bout the points I lost when the enquiry was done? Is this good business practice?

I will escalate my matter even if it means getting legal assistance.